Single replacement
When many were taught chemistry in the 1970s this was called a double decomposition reaction. It is now called a salt metathesis reaction and also double displacement reaction. There are examples and more information at the related link.
The general form for a double-displacement reaction is AB + CD -> AD + CB, where two compounds swap anions or cations to form two new compounds.
The general equation for an endothermic double replacement reaction is: AB + CD → AD + CB + heat absorbed. In this reaction, the reactants AB and CD exchange ions to form the products AD and CB, with the absorption of heat from the surroundings.
A double replacement reaction can be represented by the following: AB + CD ---> AD + CB, where A and C represent the positive ions in the compounds, and B and D represent the negative ions in the compounds. During a double replacement reaction, the positive ions and negative ions trade partners. An example of a double replacement reaction is AgNO3 + NaCl → AgCl + NaNO3, where positively charged silver and sodium ions switch places with the negatively charged nitrate and chloride ions.
Synthesis reaction: A + B → AB (e.g. 2H2 + O2 → 2H2O) Decomposition reaction: AB → A + B (e.g. 2H2O → 2H2 + O2) Single displacement reaction: A + BC → AC + B (e.g. Zn + 2HCl → ZnCl2 + H2) Double displacement reaction: AB + CD → AD + CB (e.g. AgNO3 + NaCl → AgCl + NaNO3) Combustion reaction: Hydrocarbon + O2 → CO2 + H2O (e.g. CH4 + 2O2 → CO2 + 2H2O)
When many were taught chemistry in the 1970s this was called a double decomposition reaction. It is now called a salt metathesis reaction and also double displacement reaction. There are examples and more information at the related link.
Double-replacement
a(b + d).
This kind of chemical reaction is usually called "displacement" and sometimes "substitution".
The general form for a double-displacement reaction is AB + CD -> AD + CB, where two compounds swap anions or cations to form two new compounds.
The general equation for an endothermic double replacement reaction is: AB + CD → AD + CB + heat absorbed. In this reaction, the reactants AB and CD exchange ions to form the products AD and CB, with the absorption of heat from the surroundings.
AB + CD ==> AD + CB
Double replacement
im pretty sure it depends on the type of reaction wether its a synthesis (a+B=ab), single displacment (a+bc=b+ac) or double displacment(ab+cd=ad+bc).
Synthesis - A + B = AB Decomposition - AB = A + B Single Replacement - A + BC = B + AC Double Replacement - AB + CD = AD + CB Combustion - either a synthesis, decomposition, or single replacement reaction. It combines with oxygen.
other name for an exchange reaction but metathesis reaction. This reaction usually occurs in hydrolysis and is AB+CD=AD+CB
Ab+cd > ad+cb. A and c are the metals or the positive ion